Heat the oil in a pan over a medium-high heat add onion and garlic fry stirring for 5 minutes until translucent

Meanwhile heat the butter in a pan add mushrooms and cook stirring for 5 minutes until tender

Add stock barley and salt to the pan with the onion and bring to a boil partially cover pan and reduce heat to low stirring occasionally until barley is tender

Mix mushrooms through the barley and serve garnish with fresh parsley